Non-breath DUI tester with automatic calibration and calibration method

摘要

The present invention relates to a method of calibrating a sensor based on the concentration of air in an aerobic breathing detector, and to an aerobic breathing detector to which the method is applied. In the present invention, the detection reference value of the sensor is calibrated as the concentration of external air, and through this, the process of precisely calibrating the sensor can be performed automatically or manually at all times or at an appropriate time. Through the present invention, since it is always calibrated without the need for a user or a professional calibration institution to calibrate an aerobic breathalyzer, the highest sensitivity and accuracy are always maintained, and convenience in use can be secured.